Also interesting: if you search wowhead for "Firemind Pendant" the normal one, it won't give you a link to the heroic one under "See Also". If you google search for the heroic one, you can find it on wowhead.

... wtf :}

Would like confirmation on getting heroic versions (through CF or other means):

Why don't you ask the Firestone vendor standing on the outside and inside of the Firelands entrance? I'm pretty sure he has the complete list. Without checking myself, I believe he upgrades VP and trash loot, but not rep items.

A blue poster in the US shaman forums stated that the list of upgradeable items on those vendors is incomplete. He did not say what items are missing. They are looking into the issue.
At the moment, not all valor gear is upgradeable, only ranged slot gear is.

A blue poster in the US shaman forums stated that the list of upgradeable items on those vendors is incomplete. He did not say what items are missing. They are looking into the issue.
At the moment, not all valor gear is upgradeable, only ranged slot gear is.

A gm conversation was posted somewhere that you can simply rightclick the firestone, then leftclick the item you want to upgrade (using the firestone on the item). This should work for any reputation or valor item that is not on the firestone vendor.